Q37 of 167 Page 210

Define 'speciation'. Explain how speciation occurs.

(A) Speciation is the formation of new and different species from existing species in the course of evolution. Speciation occurs when a population gets separated geographically.

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Explain the terms 'analogous organs' and 'homologous organs' with examples.

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In what way is analogous organ evidence for evolution?

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Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Give reason for your answer.

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Define 'natural selection'.